First there was there phones running Windows Mobile, then the iPhone was born, which to a large extent revolutionized the smartphone market and changed the landscape forever. Then the 800 pound Gorilla called Google came out with Android which is now perhaps the most formidable competitor to the iPhone.

On November 2, Sony Ericsson, the mobile handset maker that for sometime now has been struggling to keep up with the competition, announced its latest phone, the Xperia X10, powered by Android 1.6 a.k.a Doughnut. This phone is really an iPhone killer or at least will hasten the demise of the iPhone craze.

This announcement follows in the heels of Motorola which recently announced the Droid phone, also powered by Google’s Android.

The Xperia boasts of some really inspiring features, including:

A 4″ 480 x 854 px (WVGA) screen

An 8.1 MP camera with up to 16x digital zoom

A 1GB internal memory coupled with an 8GB external memory

Google 1.6 Donut

1GHz Qualcom Snapdragon

Google maps with streetview

MS Exhchange Active Sync among others.

You can get a full review on Engadget or read the press release for yourself. It’s good to see more competition for the iPhone. I hope all of these help to push prices down further.